Information on this webpage is considered preliminary and will continue to be updated as the event is analyzed.



Event Summary - 30 March 2013

Thunderstorms developed during the afternoon and evening hours of Saturday March 30th as a cold front pushed southeast into and through Eastern Oklahoma and Northwest Arkansas. These thunderstorms moved east and southeast across an unstable airmass ahead of the frontal boundary. Several thunderstorms became severe with numerous reports of hail up to golf ball size with a few reports of larger hail up to the size of baseballs. One severe thunderstorm in particular traveled southeast through Wagner, Muskogee and Sequoyah counties in Northeast Oklahoma during the late evening hours producing two brief tornadoes; one near Fort Gibson, Oklahoma and the other near Sallisaw, Oklahoma.

Preliminary Information on the Fort Gibson Tornado (last updated 4 pm cdt on 4/03/2013):

Fort Gibson Tornado (Muskogee County OK)

Began: 1.8 miles ESE of Wybark at 9:35 PM CDT

Ended: 2.5 miles E of Wybark at 9:37 PM CDT

Path Lenth: 1.1 miles

Max Path Width: 200 yards

EF Rating: EF-0 with estimated max wind speeds of 85 mph

Detailed Preliminary Survey Information

Damage survey indicated that this tornado damaged a center-pivot irrigation system, damaged the roof of a permanent home and also damaged barns. Several large tree limbs were snapped and a couple of power poles were blown down.

Preliminary Information on the Sallisaw Tornado (last updated 4 pm cdt on 4/03/2013):

Sallisaw Tornado (Sequoyah County OK)

Began: 2.7 miles SSW of Sallisaw, OK at 11:20 PM CDT

Ended: 2.7 miles SSW of Sallisaw, OK at 11:21 PM CDT

Path Lenth: 0.5 miles

Max Path Width: 175 yards

EF Rating: EF-1 with estimated max wind speeds of 100-110 mph

Detailed Preliminary Survey Information

A damage survey indicated that this brief tornado destroyed several wood-framed barns and outbuildings. The tornado also severely damaged the roof and windows of a permanent home. A number of power poles were blown down and large trees limibs were snapped as well.

Information from this event is still considered preliminary and will be modified based on additional information that may become available to us. Anyone with information that could enhance the record of this event should contact the National Weather Service Office in Tulsa at 918-838-7838 during business hours, or send us an email at, or submit an online report.

Image captions below the image. Click on image to open a larger version in a new window.

sfc map
Surface fronts and radar 10pm/March 30th


radar image
Radar Images of Sallisaw Storm at 11:18PM CDT
Radar Image of Fort. Gibson Storm
Radar image of Fort Gibson Storm at 9:35 PM CDT


storm photo image
Storm Photo taken at 854PM CDT by Von Castor (Fox23) near Muskogee


Image of Tonado damage to an outbuilding Image of Tornado damage spread across a field
Damage to a barm near Sallisaw Damage spread across a field near Sallisaw
Image of Tornado damage to a roof of a permanent home. Image of Tornado damage to center pivot irrigation
Damage to a roof of a home near Sallisaw
Damaged Center-Pivot Irrigation system near Fort Gibson

Preliminary Event Impact Map This map will be updated as additional information is received. Click on the icons within the map for additional details and/or images related to that impact. Tornado information can be found by clicking on the track.

Tornado Tracks: Due to mapping/GPS software differences and road accessibility along the track, use the plotted tracks for general reference only. Tornado tracks may be updated and/or changed due to storm damage surveys, data analysis, and eyewitness reports.

Storm Survey: Colored icons represent the Storm Survey rating assigned to surveyed damage. Click on the icon for additional information and available photos. You may need to zoom in tightly to see all the available data points when data points are logged close to one another. Links to photos are available in the upper portion of the text window that opens when you click on one of the colored data icons or points.

Hail, Wind, and Flood Reports: Click on the icon for the time, location, and description of the storm report. Click here to submit your storm report.

Other Data: Additional data or images from the event.

Survey Legend


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